3697985 has 8 divisors (see below), whose sum is σ = 4448040. Its totient is φ = 2951424.

The previous prime is 3697949. The next prime is 3697997. The reversal of 3697985 is 5897963.

It can be written as a sum of positive squares in 4 ways, for example, as 982081 + 2715904 = 991^2 + 1648^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3697985 - 2⁶ = 3697921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3161 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (556005).

Almost surely, 2^3697985 is an apocalyptic number.

It is an amenable number.

3697985 is a deficient number, since it is larger than the sum of its proper divisors (750055).

3697985 is a wasteful number, since it uses less digits than its factorization.

3697985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747.

The product of its digits is 408240, while the sum is 47.

The square root of 3697985 is about 1923.0145605273. The cubic root of 3697985 is about 154.6399551531.

The spelling of 3697985 in words is "three million, six hundred ninety-seven thousand, nine hundred eighty-five".